Home / Products / Centrifugal Fans / Backward Centrifugal Fan With Support Bracket / 48V DC 250W 400mm High Air Volume Powerful Backward Centrifugal Bracket Fan for Large-scale Ventilation

loading

Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
whatsapp sharing button
kakao sharing button
snapchat sharing button
telegram sharing button
sharethis sharing button

48V DC 250W 400mm High Air Volume Powerful Backward Centrifugal Bracket Fan for Large-scale Ventilation

1. 400mm
2. IP44 protection level
3. Aluminum alloy motor with Propylene with glass-fiber reinforced impeller, fashion design.
4. Using Ball bearing, working life more than 50,000 hours
Availability:
Quantity:
  • FK3G400-48PK-20

  • Fanova

Nominal Voltage

VDC

48

Nominal voltage range

VDC

36~57

Current draw

A

5.2±10%

Speed(RPM)

min-1

1170±5%

Power consumption

W

250±10%

Sound Pressure Level

dB(A

75±5%

Max. Air Flow

CFM / m3/H

2542.32/4320

Max. Static Pressure

In.wg /Pa

1.78/445

Insulation class

~

 Class B

Degree of protection

~

IP44

Control Input

~

0~10VDC / PWM

Signal Output

~

FG (Tach output )

Product Overview

The FK3G400-48PK-20 is a large-format centrifugal fan engineered for high-volume airflow in industrial cooling systems. Featuring a 400mm plastic-GF impeller and integrated bracket, it delivers powerful ventilation with energy efficiency. Designed for demanding applications, it balances massive airflow with intelligent control in a rugged IP44-rated package.


Core Features

  1. High-Flow Industrial Ventilation
    Moves 4320 m³/h (2542 CFM)—ideal for large enclosures or machinery—while generating 445 Pa (1.78 In.wg) static pressure. Optimized 7-blade design operates at 1170 RPM for efficient cooling.

  2. Energy-Efficient Powerhouse
    Draws just 250W at 48VDC (36–57V range), reducing operational costs. Soft-start protection prevents power surges during activation.

  3. Robust & Versatile Mounting
    Integrated bracket enables secure installation in any orientation. IP44-rated housing resists dust/moisture in -25°C to 60°C environments.

  4. Smart Speed Management
    0–10V/PWM control (yellow wire) for dynamic RPM adjustment. FG signal outputs 3 pulses/revolution (white wire) for real-time system monitoring.


Applications

  • Industrial Machinery Cooling: Ventilation for CNC equipment, presses, or extruders.

  • Data Center Racks: High-volume airflow in server clusters or power distribution units.

  • HVAC Air Handlers: Supplemental cooling in commercial ventilation systems.

  • Renewable Energy: Thermal management for solar inverters or battery storage units.


FAQ

Q: Can it handle dusty workshop environments?
A: Yes—IP44 rating protects against particulate ingress and moisture splashes.

Q: How is noise managed at full speed?
A: Use PWM control to reduce RPM. Noise drops ~20 dB(A) at 70% speed (≈55 dB(A)).

Q: What does the FG signal’s "3 pulses/revolution" indicate?
A: Enables precise RPM monitoring—each pulse equals 1/3 of a full rotation.

Q: Is the bracket removable?
A: Yes—contact support for custom mounting solutions.


DCW400-48PK-20

DW400-48PK-20

Life Expectance

50,000 Hours(L10),At 40℃ room, humidity 15%~65%RH

Technical features

Motor current limitation

Soft starting Protection

Under/Over voltage detection

Thermal overload protection for electronics/motor

Line undervoltage detection

Locked-rotor Protection

Reverse Polarity Protection


Operating Temperature

Fan

-25℃ (Min. )~60℃ (Max. )

Heat sink of IC

115℃ (Max. )

Other electronic parts

85℃ (Max. )

Ball bearing

80℃ (Max. )

Lead Wire

120℃ (Max. )

Storage Temperature

-40℃ to 75℃

Operating Humidity

5% to 90% RH

Storage Humidity

5% to 95% RH


Previous: 
Next: 

Product Category

Contact Us

 +86-512-66152110
 +86-18168737096
 +8617715518438
 +8617715518438
 No.739, Fuyuan Road, Xiangcheng District, Suzhou, Jiangsu, P.R. China 215133

Related Products

If you have any questions, please feel free to contact us at any time!

Fanova (Suzhou) Motor Technology Co., Ltd. is a leader in the industry, provides customers with diverse fan solutions with its professional, innovative, and environmentally friendly philosophy.

Quick Links

Product Category

Contact Us

+86-512-66152110
+86-17715518438
Sales01@fanova-tech.com
+8617715518438
+8617715518438
No.739, Fuyuan Road, Xiangcheng District, Suzhou, Jiangsu, P.R. China 215133
Leave a Message
Free Consultation
​Copyright © 2024 Fanova (Suzhou) Motor Technology Co., Ltd. All rights reserved. | Sitemap | Privacy Policy